Release 0.67.0

Features

• Add support for registering and deregistering external clusters using EKS Connector (#4189)
• Added new documentation for eksctl anywhere (#4222)
• Add token cache for MFA users and credentials (#4194)
• Add support for specifying wellKnownPolicies when using addons (#4161)

Improvements

• Update aws-node (#4219)
• Delete IAM role if RegisterCluster fails (#4201)

Bug Fixes

• Add validation to fix gitops field panic (#4220)
• import service role during upgrade cluster (#4187)